How to edit and run the nav2d tutorial

Question

I'm trying to edit the launch file by following tutorials for nav2d. So at the beginning I have download the package from github: https://github.com/skasperski/navigation_2d and past it in my catkin_ws, and run make Afterword when I try to run the one of the tutorials then it complain this:

roslaunch nav2d_tutorials tutorial2.launch

` multiple files named [tutorial2.launch] in package [nav2d_tutorials]:

• /opt/ros/indigo/share/nav2d_tutorials/launch/tutorial2.launch
• /home/hjt/catkin_ws/src/navigation_2d-master/nav2d_tutorials/launch/tutorial2.launch Please specify full path instead The traceback for the exception was written to the log file`

Then I tried to write the path but it did not work roslaunch nav2d_tutorials /home/hjt/catkin_ws/src/navigation_2d-master/nav2d_tutorials/launch/tutorial2.launch

What should I do, so I'm able to run the simulation with edited launch files ?

---

Originally posted by RosUser on ROS Answers with karma: 81 on 2016-02-01

Post score: 0

Answer 1

Looks like you have both the binary version (in /opt/ros/indigo/...) and the source version (in /home/hjt/catkin_ws/src/...) installed. So make sure you build using catkin so the source version can correctly override the binary version.

cd /home/hjt/catkin_ws
source /opt/ros/indigo/setup.bash
catkin_make
source /home/hjt/catkin_ws/devel/setup.bash

Now after you build your workspace, you always have to source the setup.bash from this workspace in order to use it, not the one from /opt/ros/... Try this first, because as far as I know it should be no problem to have a package both as binary and source installed. Only if it doesn't work, try uninstalling the nav2d-binaries.

And yes, you shouldn't manually change anything in /opt/ros/.... But it is no problem to remove packages using the package manager of your choice (e.g. Synaptic) or just apt-get on the command line:

sudo apt-get remove ros-indigo-nav2d

---

Originally posted by Sebastian Kasperski with karma: 1658 on 2016-02-01

This answer was ACCEPTED on the original site

Post score: 0

---

Original comments

Comment by RosUser on 2016-02-01:
Unfortunately it did not worked even when I run source /opt/ros/indigo/setup.bash and then catkin_make

Comment by Sebastian Kasperski on 2016-02-02:
Have you tried un-installing the binary version?

Comment by RosUser on 2016-02-02:
No,because I have been told that I should not touch or edit anything in ROS installation folder! And I'm not sure how to un-install all nav2d packages so it dos not have any influence on other thing?

Comment by RosUser on 2016-02-02:
Thank you so much Sebastian for helping, I'm now able to run the simulation from my catkin_ws. I'm just missing the Robot icon in the RVIZ simulation but that is maybe because of I'm using Ros Indigo and as you mentioned befor that URDF was not supported.